The main contribution of this work is the replication of DPR, where our experimental results add a number of important refinements to the original work.
Code associated with our retrieval experiments is packaged in our Pyserini IR toolkithttp://pyserini.io/ [1]} and code associated with our end-to-end QA experiments is part of our PyGaggle toolkithttp://pygaggle.ai/ for neural text ranking.
